comparison mercurial/error.py @ 47290:5e736d2e9703

errors: move Abort earlier, so more exceptions can subclass it

I'd like to make at least `InterventionRequired` subclass `Abort` and
Python requires the superclass to be defined before the subtype.

Differential Revision: https://phab.mercurial-scm.org/D10736

47289:33c0c25d0b0f

    def __init__(self, *args, **kw):
        self.hint = kw.pop('hint', None)
        super(Hint, self).__init__(*args, **kw)


class StorageError(Hint, Exception):
    """Raised when an error occurs in a storage layer.

    Usually subclassed by a storage-specific exception.
    """

            _(
                b"unresolved conflicts (see 'hg resolve', then 'hg %s --continue')"
            )
            % opname,
        )


class Abort(Hint, Exception):
    """Raised if a command needs to print an error and exit."""

    def __init__(self, message, hint=None, detailed_exit_code=None):
        # type: (bytes, Optional[bytes]) -> None
        self.message = message
        self.hint = hint
        self.detailed_exit_code = detailed_exit_code
        # Pass the message into the Exception constructor to help extensions
        # that look for exc.args[0].
        Exception.__init__(self, message)

    def __bytes__(self):
        return self.message

    if pycompat.ispy3:

        def __str__(self):
            # the output would be unreadable if the message was translated,
            # but do not replace it with encoding.strfromlocal(), which
            # may raise another exception.
            return pycompat.sysstr(self.__bytes__())

    def format(self):
        # type: () -> bytes
        from .i18n import _

        message = _(b"abort: %s\n") % self.message
        if self.hint:
            message += _(b"(%s)\n") % self.hint
        return message


class InputError(Abort):
    """Indicates that the user made an error in their input.

47290:5e736d2e9703

    def __init__(self, *args, **kw):
        self.hint = kw.pop('hint', None)
        super(Hint, self).__init__(*args, **kw)


class Abort(Hint, Exception):
    """Raised if a command needs to print an error and exit."""

    def __init__(self, message, hint=None, detailed_exit_code=None):
        # type: (bytes, Optional[bytes]) -> None
        self.message = message
        self.hint = hint
        self.detailed_exit_code = detailed_exit_code
        # Pass the message into the Exception constructor to help extensions
        # that look for exc.args[0].
        Exception.__init__(self, message)

    def __bytes__(self):
        return self.message

    if pycompat.ispy3:

        def __str__(self):
            # the output would be unreadable if the message was translated,
            # but do not replace it with encoding.strfromlocal(), which
            # may raise another exception.
            return pycompat.sysstr(self.__bytes__())

    def format(self):
        # type: () -> bytes
        from .i18n import _

        message = _(b"abort: %s\n") % self.message
        if self.hint:
            message += _(b"(%s)\n") % self.hint
        return message


class StorageError(Hint, Exception):
    """Raised when an error occurs in a storage layer.

    Usually subclassed by a storage-specific exception.
    """

            _(
                b"unresolved conflicts (see 'hg resolve', then 'hg %s --continue')"
            )
            % opname,
        )


class InputError(Abort):
    """Indicates that the user made an error in their input.